After some testing it turned out the only broken part was the mainboard,
I've sent it back and hope to get a new one next week. Got to buy a new
PSU though, as the second one that blew up is damaged now. Won't take
too much time, will get it when I pick up the mainboard. Till then, I
won't work on both the bug tracker and the engine, so I don't have any
trouble moving the codebase around. By the way, today, I've won my first
match against Nightmare bots in Quake3 - it was on Q3DM6 "The camping
grounds" to the sound of Fury in the
Slaughterhouse. Excellent! :-)